GHCi, version 8.2.2: http://www.haskell.org/ghc/  :? for help
[1 of 1] Compiling Main             ( lwexercises.hs, interpreted )
Ok, one module loaded.
*Main> 1009
*Main> 1009
*Main> 300
*Main> 300
*Main> -17.0
*Main> -17.0
*Main> -17.0
*Main> 5
*Main> 5
*Main> 100
*Main> 100
*Main> 4097
*Main> 4097
*Main> True
*Main> True
*Main> False
*Main> 
<interactive>:17:1: error:
    • Variable not in scope: eq4
    • Perhaps you meant one of these:
        ‘eq1’ (line 27), ‘eq2’ (line 30), ‘eq3’ (line 33)
*Main> False
*Main> Leaving GHCi.
